Electrical Resistivity as a Tool for Identifying Geologic Heterogeneities Which Control Seepage at Mirror Lake, NH

Mitchell, Natasha; Nyquist, Jonathan E.; Toran, Laura; Rosenberry, Donald O.; Mikochik, James S.

doi:10.4133/1.2963316

Cited by 16 publications

(14 citation statements)

References 18 publications

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“…The high silt content and the presence of organic material could explain why the overall resistivity within the samples is lower than the water (200 ohm m) in the resistivity sections. This result is similar to some published data (Mitchell et al, 2008;Nyquist et al, 2008;Colombero et al, 2014).…”

Section: Lacustrine Sediment Propertiessupporting

confidence: 93%

“…The sediments appear dark brown to black coloured with a strong sulphidic odour, suggesting the presence of organic sulphur compounds. This result is similar to some published data (Mitchell et al, 2008;Nyquist et al, 2008;Colombero et al, 2014). The accumulation of reduced organic S compounds was also confirmed by high TS content measured in the two cores (0.6 g kg À1 -CL1 and 0.4 g kg À1 -CL2).…”

Section: Lacustrine Sediment Propertiessupporting

confidence: 92%

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Mechanisms linking active rock glaciers and impounded surface water formation in high‐mountain areas

Colombo

Sambuelli

Comina

et al. 2017

Earth Surf Processes Landf

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Rock glaciers are slowly flowing mixtures of debris and ice occurring in mountains. They can represent a reservoir of water, and melting ice inside them can affect surface water hydrochemistry. Investigating the interactions between rock glaciers and water bodies is therefore necessary to better understand these mechanisms. With this goal, we elucidate the hydrology and structural setting of a rock glacier–marginal pond system, providing new insights into the mechanisms linking active rock glaciers and impounded surface waters. This was achieved through the integration of waterborne geophysical techniques (ground penetrating radar, electrical resistivity tomography and self‐potentials) and heat tracing. Results of these surveys showed that rock glacier advance has progressively filled the valley depression where the pond is located, creating a dam that could have modified the level of impounded water. A sub‐surface hydrological window connecting the rock glacier to the pond was also detected, where an inflow of cold and mineralised underground waters from the rock glacier was observed. Here, greater water contribution from the rock glacier occurred following intense precipitation events during the ice‐free season, with concomitant increasing electrical conductivity values. The outflowing dynamic of the pond is dominated by a sub‐surface seepage where a minor fault zone in bedrock was found, characterised by altered and highly‐fractured rocks. The applied approach is evaluated here as a suitable technique for investigating logistically‐complex hydrological settings which could be possibly transferred to wider scales of investigation. Copyright © 2017 John Wiley & Sons, Ltd.

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Section: Lacustrine Sediment Propertiessupporting

confidence: 93%

Section: Lacustrine Sediment Propertiessupporting

confidence: 92%

Mechanisms linking active rock glaciers and impounded surface water formation in high‐mountain areas

Colombo

Sambuelli

Comina

et al. 2017

Earth Surf Processes Landf

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“…Flow across the sediment‐water interface is substantially heterogeneous in most lakes, wetlands, streams, rivers, and estuaries. Many studies have addressed and quantified spatial heterogeneity, primarily to scale flux measured on the order of square meters to a river reach or shoreline segment or an entire lake [e.g., Belanger and Kirkner , ; Burnett et al ., ; Craig , ; Genereux et al ., ; Kaser et al ., ; Keery et al ., ; Kikuchi et al ., ; Mitchell et al ., ; Rosenberry and Pitlick , ; Rosenberry et al ., ; Schmidt et al ., ; Schneider et al ., ; Simpkins , ; Stieglitz et al ., ]. Quantifying temporal heterogeneity is far less common, especially in lentic settings.…”

Section: Introductionmentioning

confidence: 97%

Temporal variability of exchange between groundwater and surface water based on high‐frequency direct measurements of seepage at the sediment‐water interface

Rosenberry

Sheibley

Cox

et al. 2013

Water Resources Research

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[1] Seepage at the sediment-water interface in several lakes, a large river, and an estuary exhibits substantial temporal variability when measured with temporal resolution of 1 min or less. Already substantial seepage rates changed by 7% and 16% in response to relatively small rain events at two lakes in the northeastern USA, but did not change in response to two larger rain events at a lake in Minnesota. However, seepage at that same Minnesota lake changed by 10% each day in response to withdrawals from evapotranspiration. Seepage increased by more than an order of magnitude when a seiche occurred in the Great Salt Lake, Utah. Near the head of a fjord in Puget Sound, Washington, seepage in the intertidal zone varied greatly from À115 to þ217 cm d À1 in response to advancing and retreating tides when the time-averaged seepage was upward at þ43 cm d À1. At all locations, seepage variability increased by one to several orders of magnitude in response to wind and associated waves. Net seepage remained unchanged by wind unless wind also induced a lake seiche. These examples from sites distributed across a broad geographic region indicate that temporal variability in seepage in response to common hydrological events is much larger than previously realized. At most locations, seepage responded within minutes to changes in surface-water stage and within minutes to hours to groundwater recharge associated with rainfall. Likely implications of this dynamism include effects on water residence time, geochemical transformations, and ecological conditions at and near the sediment-water interface.Citation: Rosenberry, D. O., R. W. Sheibley, S. E. Cox, F. W. Simonds, and D. L. Naftz (2013), Temporal variability of exchange between groundwater and surface water based on high-frequency direct measurements of seepage at the sediment-water interface, Water Resour.

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“…Researchers frequently use resistivity imaging methods in various environments to investigate subsurface structures (e.g., Binley et al, 2002;Chang et al, 2011;Kemna et al, 2002;Kim et al, 2002;Mitchell et al, 2008;L. Toran et al, 2010b;van Schoor, 2002).…”

Section: Survey Configurationsmentioning

confidence: 99%

Examining lake-bottom structures with the resistivity imaging method in Ilan's Da-Hu Lake in Northeastern Taiwan

Chang

Liang-Chi

Lee

et al. 2015

Journal of Applied Geophysics

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Electrical Resistivity as a Tool for Identifying Geologic Heterogeneities Which Control Seepage at Mirror Lake, NH

Cited by 16 publications

References 18 publications

Mechanisms linking active rock glaciers and impounded surface water formation in high‐mountain areas

Mechanisms linking active rock glaciers and impounded surface water formation in high‐mountain areas

Temporal variability of exchange between groundwater and surface water based on high‐frequency direct measurements of seepage at the sediment‐water interface

Examining lake-bottom structures with the resistivity imaging method in Ilan's Da-Hu Lake in Northeastern Taiwan

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